Bilaterally coherent tremor resembling enhanced physiological tremor: report of three cases.
Identifieur interne : 006229 ( Main/Merge ); précédent : 006228; suivant : 006230Bilaterally coherent tremor resembling enhanced physiological tremor: report of three cases.
Auteurs : John D. O'Sullivan [Royaume-Uni] ; John Rothwell ; Andrew J. Lees ; Peter BrownSource :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 2002.
English descriptors
- KwdEn :
- MESH :
- diagnosis : Tremor.
- innervation : Muscle, Skeletal.
- physiology : Dominance, Cerebral, Functional Laterality.
- physiopathology : Cerebral Cortex, Tremor.
- Adult, Electroencephalography, Electromyography, Female, Humans, Male, Signal Processing, Computer-Assisted.
Abstract
The contribution of the central nervous system to tremor pathogenesis is unclear. Poor side-to-side coherence in physiological, essential, and parkinsonian tremors suggests distinct bilateral generators. By contrast, significant bilateral coherence demonstrated in orthostatic tremor and in enhanced physiological tremor (EPT) in patients with persistent mirror movements favours single or closely linked bilateral oscillators. We describe three patients (aged 21-37 years) who developed unusual bilateral postural and kinetic tremors at 6-13 Hz resembling EPT. The tremor involved all limbs, and in two cases the face or jaw, in the absence of other significant neurological features. Significant side-to-side coherence was demonstrated in each case using cross-correlation of electromyographic recordings from homologous muscle pairs. We postulate that these unusual tremors originate from a single brainstem source or from bilateral oscillators closely linked at or below this level.
PubMed: 11921129
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pubmed:11921129Le document en format XML
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O'Sullivan</name><affiliation wicri:level="3"><nlm:affiliation>National Hospital for Neurology and Neurosurgery, Queen Square, London, United Kingdom.</nlm:affiliation><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>National Hospital for Neurology and Neurosurgery, Queen Square, London</wicri:regionArea><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author><author><name sortKey="Rothwell, John" sort="Rothwell, John" uniqKey="Rothwell J" first="John" last="Rothwell">John Rothwell</name></author><author><name sortKey="Lees, Andrew J" sort="Lees, Andrew J" uniqKey="Lees A" first="Andrew J" last="Lees">Andrew J. Lees</name></author><author><name sortKey="Brown, Peter" sort="Brown, Peter" uniqKey="Brown P" first="Peter" last="Brown">Peter Brown</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2002">2002</date><idno type="RBID">pubmed:11921129</idno><idno type="pmid">11921129</idno><idno type="wicri:Area/PubMed/Corpus">003B16</idno><idno type="wicri:Area/PubMed/Curation">003B16</idno><idno type="wicri:Area/PubMed/Checkpoint">003B80</idno><idno type="wicri:Area/Ncbi/Merge">000735</idno><idno type="wicri:Area/Ncbi/Curation">000735</idno><idno type="wicri:Area/Ncbi/Checkpoint">000735</idno><idno type="wicri:doubleKey">0885-3185:2002:O Sullivan J:bilaterally:coherent:tremor</idno><idno type="wicri:Area/Main/Merge">006229</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Bilaterally coherent tremor resembling enhanced physiological tremor: report of three cases.</title><author><name sortKey="O Sullivan, John D" sort="O Sullivan, John D" uniqKey="O Sullivan J" first="John D" last="O'Sullivan">John D. O'Sullivan</name><affiliation wicri:level="3"><nlm:affiliation>National Hospital for Neurology and Neurosurgery, Queen Square, London, United Kingdom.</nlm:affiliation><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>National Hospital for Neurology and Neurosurgery, Queen Square, London</wicri:regionArea><placeName><settlement type="city">Londres</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Londres</region></placeName></affiliation></author><author><name sortKey="Rothwell, John" sort="Rothwell, John" uniqKey="Rothwell J" first="John" last="Rothwell">John Rothwell</name></author><author><name sortKey="Lees, Andrew J" sort="Lees, Andrew J" uniqKey="Lees A" first="Andrew J" last="Lees">Andrew J. Lees</name></author><author><name sortKey="Brown, Peter" sort="Brown, Peter" uniqKey="Brown P" first="Peter" last="Brown">Peter Brown</name></author></analytic><series><title level="j">Movement disorders : official journal of the Movement Disorder Society</title><idno type="ISSN">0885-3185</idno><imprint><date when="2002" type="published">2002</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Cerebral Cortex (physiopathology)</term><term>Dominance, Cerebral (physiology)</term><term>Electroencephalography</term><term>Electromyography</term><term>Female</term><term>Functional Laterality (physiology)</term><term>Humans</term><term>Male</term><term>Muscle, Skeletal (innervation)</term><term>Signal Processing, Computer-Assisted</term><term>Tremor (diagnosis)</term><term>Tremor (physiopathology)</term></keywords><keywords scheme="MESH" qualifier="diagnosis" xml:lang="en"><term>Tremor</term></keywords><keywords scheme="MESH" qualifier="innervation" xml:lang="en"><term>Muscle, Skeletal</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Dominance, Cerebral</term><term>Functional Laterality</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Cerebral Cortex</term><term>Tremor</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Electroencephalography</term><term>Electromyography</term><term>Female</term><term>Humans</term><term>Male</term><term>Signal Processing, Computer-Assisted</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The contribution of the central nervous system to tremor pathogenesis is unclear. Poor side-to-side coherence in physiological, essential, and parkinsonian tremors suggests distinct bilateral generators. By contrast, significant bilateral coherence demonstrated in orthostatic tremor and in enhanced physiological tremor (EPT) in patients with persistent mirror movements favours single or closely linked bilateral oscillators. We describe three patients (aged 21-37 years) who developed unusual bilateral postural and kinetic tremors at 6-13 Hz resembling EPT. The tremor involved all limbs, and in two cases the face or jaw, in the absence of other significant neurological features. Significant side-to-side coherence was demonstrated in each case using cross-correlation of electromyographic recordings from homologous muscle pairs. We postulate that these unusual tremors originate from a single brainstem source or from bilateral oscillators closely linked at or below this level.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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